Abstract:High metabolism and insufficient blood supply are characteristics of cancer tissue, which in combination with biochemical changes favor glycolytic metabolism and result in prominent intracellular acid production. Although extracellular pH at the core of malignant tumors is as low as one unit below normal, intracellular pH (pHi) in tumor cells is typically normal or even slightly alkaline. Thus, cancer cells must possess efficient mechanisms of acid extrusion to eliminate the excess acid load.
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